Crosby, Stills, Nash, and Young's "Find the Cost of Freedom"

Yester-day, I listened to Crosby, Stills, Nash, and Young's So Far.  I noticed two things about songs on it, although neither of them is a very large point.

First I noticed that the melody in "Find the Cost of Freedom" goes along with the lyrics:

Find the cost of freedom
Buried in the ground
Mother Earth will swallow you
Lay your body down

The melodies corresponding to "buried in the ground" and "lay your body down" go down.

An even smaller point: I'd never noticed that there's tambourine in "Suite: Judy Blue Eyes."